(IEEE) Institute of Electrical and Electronics Engineers is the world’s largest technical professional organization dedicated to advancing technology for the benefit of humanity providing 5,143, 269 items including conferences, journals, magazines, early access articles, books, courses and standards.

American Chemical Society (ACS) shall provide to its members and the worldwide scientific community a comprehensive collection, in any medium, of high-quality information products and services that advance the practice of the chemical and related sciences and shall generate, in the aggregate, an annual net contribution from operations to support the Society's overall mission of advancing the broader chemistry enterprise and its practitioners for the benefit of Earth and its people.

AIP Publishing is a wholly owned not-for-profit subsidiary of the American Institute of Physics (AIP). AIP Publishing's mission is to support the charitable, scientific and educational purposes of AIP through scholarly publishing activities in the fields of the physical and related sciences on its own behalf, and on behalf of our publishing partners to help them proactively advance their missions.

A professional society since 1888, we advance research and connect the diverse global mathematical community through publications, meetings and conferences, Math Sci Net, professional services, advocacy, and awareness programs, about mathematics and its relationship to other disciplines and everyday life.

The American Physical Society (APS), through the Physical Review journals it publishes, aims to offer open access options that meet the needs of all authors across the research communities it serves. A pioneer in open access publishing, APS launched its first fully open access journal in 1998. In early 2011 APS transformed some of the largest, most-cited, and most-trusted peer-reviewed, primary research titles in physics into hybrid journals by offering authors an option to publish individual articles open access.

The ASCE Library is the world’s largest full-text database of civil engineering research and practical publications. It offers unprecedented online access to more than 145,000 technical and professional papers—1.5 million pages of content. More than 7,000 papers are added annually.

The ACM Digital Library is a research, discovery and networking platform containing Full-Text Collection, including journals, conference proceedings, technical magazines, newsletters and books, Guide to Computing Literature, a comprehensive bibliographic database focused exclusively on the field of computing. A richly interlinked set of connections among authors, works, institutions, and specialized communities.

IOP science is an online service for journal content published by IOP Publishing. IOP science embraces innovative technologies to make it easier for researchers to access scientific, technical and medical content.